Electrostatics Electric Dipole - Questions & Answers | Exam2Win

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1. The direction of dipole moment is

A. from +q and -q

B. from –q and +q

C. perpendicular to the line joining –q to +q

D. away from +q

Explanation:

2. A system of two equal and opposite charges (+q and -q) separated by a small distance ‘d’, has a dipole moment ‘p’ equal to

A. q/d

B. 2qd

C. qd

D. 2q/d

Explanation:

3. A dipole kept in a uniform electric field will

A. rotate in the field

B. lose its charge

C. remain in the same position

D. align along the field

Explanation:

4. The unit of dipole moment is

A. Cm

B. Cm-1

C. NC -1 m2

D. C2N-1m-2

Explanation:

5. Potential at any point due to an electric dipole is

A. q cos θ/4πεor2

B. q sin θ/4πεor3

C. p sin θ/4πεor3

D. p cos θ/4πεor2

Explanation:

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